Historical
DIN EN 574:1997
Safety of machinery - Two-handed control devices - Functional aspects and principles for design (Foreign Standard)
The document specifies the safety reuirements of a two-hand control device as a safety device which requires both hands of one person to initiate and also to maintain the operation of a machine. It desribes the main characteristics of two-hand control devices for the achievement of safety and sets out combinations of functional characteristics for three graduated types.
Deutsches Institut für Normung [din]